@misc{indiciae8db0da22ce8d,
  title = {Earthquakes in the United States, April-June 1974},
  author = {Ruth B. Simon and Carl W. Stover and W. J. Person},
  year = {1976},
  doi = {10.3133/cir723b},
  url = {https://pubs.usgs.gov/publication/cir723B},
  note = {Source identifier: cir723B}
}